Possible Causes
WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| DEF PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| DEF PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO THE DEF PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT |
| DEF PRESSURE SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| DEF PRESSURE SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| DEF SUPPLY PUMP ASSEMBLY |
| DIESEL EXHAUST FLUID DOSING CONTROL UNIT |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L .